By James E. Brumbaugh
That includes up to date charts facing the commonest events welding employees face at the activity , this accomplished, pocket-sized reference is predicated on innovations from operating pros and covers welding symbols and definitions, forms of joints and welds, ordinary welding station configurations, oxygen cylinders, arc-welding charts, U.S metric measures, and extra.
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Additional info for Audel Welding Pocket Reference
Produced by burning an excess of oxygen. The flame has no beard, and both the inner tip and the envelope are shorter. The oxidizing flame is of limited use because it is harmful to many metals. Fig. 2-5 Three basic components of the oxyacetylene flame. Shutting Off the Torch 1. First, close the acetylene needle valve on the torch, be- cause shutting off the flow of acetylene will immediately extinguish the flame. If the oxygen is shut off first, on the other hand, the acetylene will continue to burn, throwing off smoke and soot.
For example, using an oxygen hose to carry acetylene could cause a serious accident. No hose should be used for any purpose other than its initial use. A further safety precaution is the design of the threading on the hose connections. The fuel gas hoses have left-hand threaded connections (and a groove around the outside), whereas the oxygen hoses are fitted with right-hand thread connections and swivel nuts at both ends. NOTE Always use the shortest possible hose length between the cylinders and the torch.
B. Increase oxygen and acetylene pressures slowly until the popping sound is eliminated. c. Stop welding, allow the torch tip time to cool, and then resume welding with the tip held farther away from the work. (continued) Stop welding, allow the torch tip time to cool, thoroughly clean the tip, and then resume welding. Stop welding, allow the torch tip time to cool, thoroughly clean the tip, and then resume welding. Stop welding, allow the torch tip time to cool, thoroughly clean the tip, and then resume welding.